I have a PDF file located on a hard drive. On that same hard drive is the original using a different name. There are thousands of files on the hard drive. Can I find out what and where the original is that created the pdf?
Open the PDF with Acrobat, and pick File->Preferences. Information about the original file may be in a few places.
Many programs that output PDF will put the filename in the Title field. Information about the creator of the file can be found in the PDF Producer field.